Tubular metering or dosing mechanism for dispensing liquid from a container in successive quantums of uniform volume

摘要

The tubular dosing mechanism can be inserted into the dispensing opening of a liquid container. It has a dosing channel the outer end of which is closed, and a discharge channel which is axially separated from the dosing channel and is open at the outer end. Both the channels are connected to a collecting area located further inwards than the inner end of the dosing channel. The dosing channel has axially spaced inlet and outlet orifices connected to the inner area of the liquid container. Of these, the outlet orifice is positioned further axially inwards is the issuing-opening into the dosing channel of a channel which extends through the base wall of the collecting area. Modifications are shown especially for use where the liquid is more viscous than water or the liquid container has an easily deformable sidewall.